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Agent skill

Design

by synnaxlabs in synnaxlabs/synnax

Process and hard rules for designing and planning complex new features, refactors, and re-architectures.

Custom licenceAuto-check passedAgent Workflows

Install Design

skills CLI
$ npx skills add synnaxlabs/synnax --skill design -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install synnaxlabs/synnax design --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/synnaxlabs/synnax.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/design .claude/skills/design && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
design
GitHub stars
128
Token cost
~4.5k tokens
SKILL.md length
2,448 words
Files
1
Skills in repo
10
Repo updated
First seen
Licence
Custom licence

At a glance

Process and hard rules for designing and planning complex new features, refactors, and re-architectures.

  • Works in 5 steps: Scope the deliverable. RFC when the… → Research. Implementation research (Rule… → Interview. Conducted under the interview… → …
  • Producing an RFC
  • SKILL.md covers 🚨 THE INTERVIEW RULE 🚨, The process spine, Rule 1: Implementation… and Rule 2: The…, plus 9 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Design is an agent skill from synnaxlabs/synnax. Process and hard rules for designing and planning complex new features, refactors, and re-architectures. Use whenever producing an RFC or implementation plan, evaluating whether to follow or break an existing pattern, deciding package boundaries or where a behavior lives, researching prior art or user workflows, or interviewing the user to lock design decisions. Enforces research-before-questions, one-decision-at-a-time interviews, and phases that each merge into main on their own.

Its SKILL.md is about 4.5k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Agent Workflows, covering Planning, Intellectual property and Refactoring. The repository describes itself as: The data and operations foundation for hardware.

When your agent uses it

  • Producing an RFC
  • Implementation plan
  • Evaluating whether to follow
  • Break an existing pattern

Example prompts

  • “/design”

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

  1. Scope the deliverable. RFC when the design chooses a shape: an interaction model,
  2. Research. Implementation research (Rule 1) and the principles-in-force brief
  3. Interview. Conducted under the interview skill; Rule 8 adds the design-specific
  4. Draft the deliverable in the house RFC form (Rule 9), rejections folded in.
  5. Phase the work into PRs that each merge into main on their own (Rule 10).

What it can do on your machine

Read from SKILL.md and the folder at commit c0c5749. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Design loads about 4.5k tokens when it runs. Until then it costs about 124 tokens; SKILL.md has 2,448 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~124
When it runs · the whole SKILL.md, loaded when a task matches
~4.5k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 2,448 words (~4,513 tokens).

“A design is a set of claims: this responsibility belongs here, this boundary protects that, users need this, and the work can land in these increments without leaving the system broken in between. Every claim must be earned with evidence…”

— opening of SKILL.md by synnaxlabs, Custom licence
name
design

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .claude/skills/design of synnaxlabs/synnax.

Open the folder on GitHubat commit c0c5749

Compare with similar skills

Design next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Design compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Design this skillsynnaxlabs/synnax128—~4.5kAutomated safety check: PassCustom licence
Improvefossasia/eventyay-interpretation1.6k10 repos~3.7kAutomated safety check: WarnMIT
Plan Previewu-ichi/reviewable-html-workbench2981 repos~1.8kAutomated safety check: PassMIT
One Three One RuleTommy-yw/RunbookHermes5463 repos~1.3kAutomated safety check: PassMIT
Speckdlbs/kandev912—~2.1kAutomated safety check: PassAGPL-3.0
Blueprint Refactor Surveyreceptron/mulmoterminal237—~1.3kAutomated safety check: PassMIT

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  • Improve

    fossasia/eventyay-interpretation

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    1.6k GitHub starsUsed in 10 repos~3.7k tokens
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  • Code Review

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  • Create Linear Issue

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  • Eb Review

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Categories

Questions about Design

What does Design do?

Process and hard rules for designing and planning complex new features, refactors, and re-architectures. Design is an agent skill from synnaxlabs/synnax. Process and hard rules for designing and planning complex new features, refactors, and re-architectures.

When should I use Design?

Design fits situations like: producing an RFC; implementation plan; evaluating whether to follow; break an existing pattern.

How do I install Design in Claude Code?

Run `npx skills add synnaxlabs/synnax --skill design -a claude-code`. Or copy the skill folder (.claude/skills/design in synnaxlabs/synnax) into .claude/skills/design in your project. Claude Code loads it when a task matches its description.

How do I install Design in Codex?

Run `npx skills add synnaxlabs/synnax --skill design -a codex`. Or copy the skill folder (.claude/skills/design in synnaxlabs/synnax) into .agents/skills/design in your project. Codex loads it when a task matches its description.

Can I use Design in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add synnaxlabs/synnax --skill design -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/design, .gemini/skills/design, .github/skills/design and .opencode/skills/design in your project.

What does Design need to run?

SKILL.md names no scripts, command-line tools or credentials: Design is instructions for the agent only.

Does Design access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Design safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Design use?

Design has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Design use?

About 4.5k tokens (SKILL.md is roughly 18k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Design?

Skills that share tags, products or a category with Design: Improve (fossasia/eventyay-interpretation, 1.6k stars), Plan Preview (u-ichi/reviewable-html-workbench, 298 stars), One Three One Rule (Tommy-yw/RunbookHermes, 546 stars) and Spec (kdlbs/kandev, 912 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Design?

synnaxlabs (a GitHub organization) maintains it in synnaxlabs/synnax, which has 128 GitHub stars. The repository holds 10 skills in this directory. The repository was last updated on October 10, 2026.

Source: synnaxlabs/synnax on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.